The programme has been picked up by 35 stations so far including Saga Radio and Nottingham-based Trent FM, with more expected to take it up soon.
Llewellyn-Slade PR offered stations three format options: taking a pre-packaged interview from LSPR, pre-recording an interview or interviewing the expert live.
All the stations opted for studio interviews, with some dedicating as many as six minutes of coverage.
Laker's topic was remortgaging and she explained how listeners can save money and free up equity. The interviews also featured case studies to bring the subject to life.
LSPR hopes the shows will raise awareness of personal finance issues as well as enhance the profile of interviewees.